A museum ( ; plural museums or, rarely, musea) is a building or institution that
cares for and displays a
collection of artifacts and other objects of
artistic,
cultural
Culture () is an umbrella term which encompasses the social behavior, institutions, and norms found in human societies, as well as the knowledge, beliefs, arts, laws, customs, capabilities, and habits of the individuals in these groups.Tylor ...
,
historical
History (derived ) is the systematic study and the documentation of the human activity. The time period of event before the invention of writing systems is considered prehistory. "History" is an umbrella term comprising past events as well ...
, or
scientific
Science is a systematic endeavor that builds and organizes knowledge in the form of testable explanations and predictions about the universe.
Science may be as old as the human species, and some of the earliest archeological evidence ...
importance. Many public museums make these items available for public viewing through
exhibits that may be permanent or temporary. The largest museums are located in major cities throughout the world, while thousands of local museums exist in smaller cities, towns, and rural areas. Museums have varying aims, ranging from the conservation and documentation of their collection, serving researchers and specialists, to catering to the general public. The goal of serving researchers is not only scientific, but intended to serve the
general public
In public relations and communication science, publics are groups of individual people, and the public (a.k.a. the general public) is the totality of such groupings. This is a different concept to the sociological concept of the ''Öffentlichk ...
.
There are many types of museums, including
art museums,
natural history museums
A natural history museum or museum of natural history is a scientific institution with natural history collections that include current and historical records of animals, plants, fungi, ecosystems, geology, paleontology, climatology, and more. ...
,
science museums
A science museum is a museum devoted primarily to science. Older science museums tended to concentrate on static displays of objects related to natural history, paleontology, geology, industry and industrial machinery, etc. Modern trends in ...
,
war museums, and
children's museums
Children's museums are institutions that provide exhibits and programs to stimulate informal learning experiences for children. In contrast with traditional museums that typically have a hands-off policy regarding exhibits, children's museums fe ...
. According to the
International Council of Museums
The International Council of Museums (ICOM) is a non-governmental organisation dedicated to museums, maintaining formal relations with UNESCO and having a consultative status with the United Nations Economic and Social Council. Founded in 1946, I ...
(ICOM), there are more than 55,000 museums in 202 countries.
Etymology
The English "museum" comes from the
Latin
Latin (, or , ) is a classical language belonging to the Italic branch of the Indo-European languages. Latin was originally a dialect spoken in the lower Tiber area (then known as Latium) around present-day Rome, but through the power ...
word, and is pluralized as "museums" (or rarely, "musea"). It is originally from the
Ancient Greek
Ancient Greek includes the forms of the Greek language used in ancient Greece and the ancient world from around 1500 BC to 300 BC. It is often roughly divided into the following periods: Mycenaean Greek (), Dark Ages (), the Archaic p ...
Μουσεῖον (''
Mouseion''), which denotes a place or temple dedicated to the
muse
In ancient Greek religion and mythology, the Muses ( grc, Μοῦσαι, Moûsai, el, Μούσες, Múses) are the inspirational goddesses of literature, science, and the arts. They were considered the source of the knowledge embodied in the ...
s (the patron divinities in
Greek mythology
A major branch of classical mythology, Greek mythology is the body of myths originally told by the ancient Greeks, and a genre of Ancient Greek folklore. These stories concern the origin and nature of the world, the lives and activities of ...
of the arts), and hence was a building set apart for study and the arts, especially the
Musaeum (institute) for
philosophy and research at
Alexandria
Alexandria ( or ; ar, ٱلْإِسْكَنْدَرِيَّةُ ; grc-gre, Αλεξάνδρεια, Alexándria) is the second largest city in Egypt, and the largest city on the Mediterranean coast. Founded in by Alexander the Great, Alexandr ...
, built under
Ptolemy I Soter
Ptolemy I Soter (; gr, Πτολεμαῖος Σωτήρ, ''Ptolemaîos Sōtḗr'' "Ptolemy the Savior"; c. 367 BC – January 282 BC) was a Macedonian Greek general, historian and companion of Alexander the Great from the Kingdom of Macedon ...
about 280 BC.
Purpose

The purpose of modern museums is to collect, preserve, interpret, and display objects of artistic, cultural, or scientific significance for the study and
education
Education is a purposeful activity directed at achieving certain aims, such as transmitting knowledge or fostering skills and character traits. These aims may include the development of understanding, rationality, kindness, and honesty. ...
of the public. From a visitor or community perspective, this purpose can also depend on one's point of view. A trip to a local history museum or large city art museum can be an entertaining and enlightening way to spend the day. To city leaders, an active museum community can be seen as a gauge of the cultural or economic health of a city, and a way to increase the sophistication of its inhabitants. To a museum professional, a museum might be seen as a way to educate the public about the museum's mission, such as
civil rights
Civil and political rights are a class of rights that protect individuals' freedom from infringement by governments, social organizations, and private individuals. They ensure one's entitlement to participate in the civil and political life ...
or
environmentalism
Environmentalism or environmental rights is a broad Philosophy of life, philosophy, ideology, and social movement regarding concerns for environmental protection and improvement of the health of the environment (biophysical), environment, par ...
. Museums are, above all, storehouses of knowledge. In 1829, James Smithson's bequest, that would fund the
Smithsonian Institution
The Smithsonian Institution ( ), or simply the Smithsonian, is a group of museums and education and research centers, the largest such complex in the world, created by the U.S. government "for the increase and diffusion of knowledge". Founded ...
, stated he wanted to establish an institution "for the increase and diffusion of knowledge".
Museums of natural history in the late 19th century exemplified the scientific desire for classification and for interpretations of the world. Gathering all examples for each field of knowledge for research and display was the purpose. As American colleges grew in the 19th century, they developed their own natural history collections for the use of their students. By the last quarter of the 19th century, scientific research in universities was shifting toward biological research on a cellular level, and cutting-edge research moved from museums to university laboratories. While many large museums, such as the Smithsonian Institution, are still respected as research centers, research is no longer a main purpose of most museums. While there is an ongoing debate about the purposes of interpretation of a museum's collection, there has been a consistent mission to protect and preserve
cultural artifact
A cultural artifact, or cultural artefact (see American and British English spelling differences), is a term used in the social sciences, particularly anthropology, ethnology and sociology for anything created by humans which gives informatio ...
s for future generations. Much care, expertise, and expense is invested in preservation efforts to retard
decomposition
Decomposition or rot is the process by which dead organic substances are broken down into simpler organic or inorganic matter such as carbon dioxide, water, simple sugars and mineral salts. The process is a part of the nutrient cycle and is ...
in aging documents, artifacts, artworks, and buildings. All museums display objects that are important to a culture. As historian Steven Conn writes, "To see the thing itself, with one's own eyes and in a public place, surrounded by other people having some version of the same experience, can be enchanting."
Museum purposes vary from institution to institution. Some favor education over conservation, or vice versa. For example, in the 1970s, the
Canada Science and Technology Museum
The Canada Science and Technology Museum (abbreviated as CSTM; french: Musée des sciences et de la technologie du Canada) is a national museum of science and technology in Ottawa, Ontario, Canada. The museum has a mandate to preserve and promote ...
favored education over preservation of their objects. They displayed objects as well as their functions. One exhibit featured a historical printing press that a staff member used for visitors to create museum memorabilia. Some museums seek to reach a wide audience, such as a national or state museum, while others have specific audiences, like the LDS
Church History Museum
The Church History Museum, formerly the Museum of Church History and Art, is the premier museum operated by the Church History Department of the Church of Jesus Christ of Latter-day Saints (LDS Church). It is located in Salt Lake City, Utah, and i ...
or local history organizations. Generally speaking, museums collect objects of significance that comply with their mission statement for conservation and display. Apart from questions of provenance and conservation, museums take into consideration the former use and status of an object. Religious or holy objects, for instance, are handled according to cultural rules.
Jewish
Jews ( he, יְהוּדִים, , ) or Jewish people are an ethnoreligious group and nation originating from the Israelites Israelite origins and kingdom: "The first act in the long drama of Jewish history is the age of the Israelites""The ...
objects that contain the
name of God may not be discarded, but need to be buried.

Although most museums do not allow physical contact with the associated artifacts, there are some that are interactive and encourage a more hands-on approach. In 2009,
Hampton Court Palace
Hampton Court Palace is a Grade I listed royal palace in the London Borough of Richmond upon Thames, southwest and upstream of central London on the River Thames. The building of the palace began in 1514 for Cardinal Thomas Wolsey, the chief ...
, a palace of
Henry VIII
Henry VIII (28 June 149128 January 1547) was King of England from 22 April 1509 until his death in 1547. Henry is best known for his six marriages, and for his efforts to have his first marriage (to Catherine of Aragon) annulled. His disagr ...
, in England opened the council room to the general public to create an interactive environment for visitors. Rather than allowing visitors to handle 500-year-old objects, however, the museum created replicas, as well as replica costumes. The daily activities, historic clothing, and even temperature changes immerse the visitor in an impression of what
Tudor life may have been.
Definitions by major museum professional organizations
Major museum professional organizations from around the world offer some definitions as to what a museum is and their purpose. Common themes in all the definitions are public good and care, preservation, and interpretation of collections.
The
International Council of Museums
The International Council of Museums (ICOM) is a non-governmental organisation dedicated to museums, maintaining formal relations with UNESCO and having a consultative status with the United Nations Economic and Social Council. Founded in 1946, I ...
' current definition of a museum (adopted in 2022): "A museum is a not-for-profit, permanent institution in the service of society that researches, collects, conserves, interprets and exhibits tangible and intangible heritage. Open to the public, accessible and inclusive, museums foster diversity and sustainability. They operate and communicate ethically, professionally and with the participation of communities, offering varied experiences for education, enjoyment, reflection and knowledge sharing."
The
Canadian Museums Association
The Canadian Museums Association (CMA; french: Association des musées canadiens, ''ACM''), is a national non-profit organization for the promotion of museums in Canada. It represents Canadian museum professionals both within Canada and internat ...
's definition: "A museum is a non-profit, permanent establishment, that does not exist primarily for the purpose of conducting temporary exhibitions and that is open to the public during regular hours and administered in the public interest for the purpose of conserving, preserving, studying, interpreting, assembling and exhibiting to the public for the instruction and enjoyment of the public, objects and specimens or educational and cultural value including artistic, scientific, historical and technological material."
The United Kingdom's
Museums Association
The Museums Association (MA) is a professional membership organisation based in London for museum, gallery and heritage professionals, museums, galleries and heritage organisations, and companies that work in the museum, gallery and heritage s ...<